Earth-scraper.



J, B.'C AMBBRS. BARTH SGRAPER. APPLICATION'HLED 11111.19, 19-14.

1,125,464. Patented Jan. 19, 1915.

2 SHEETS-SHEET 1.

FIGURE INVENTOR wlTNESsEs: l I BY H15 ATTORNEY J. B. CAMBERS.

EARTH SGRAPER.

A PPLIUATION FILED MAR.19, 1914.

1,125,46461 Patented Ja11.19, 1915.

2 SHEETB-SEEET Z.

I s m l 5 FIGURE 8 29 5f FIGURE 9 \1\IT\HSSES Y INVENTOR HIS ATTORNEY THE NORRIS PETERS C0... PHOTGJJTHO.. WWINGTON, D. C.

rosnrn n. cnr/renne, or san Josn, CALIFORNIA.

EARTH-scharen.

Liane-ei.

Specication of Letters Patent.

Patented dan. 19,- 191.5..

Application filed 'March 19, 1914.. Serial No. 825,856.

i 0 all 'whom t may concern Be it known that I, JOSEPH B. CAMBERS, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented certain new and useful improvements in Earth-Scrapers, of which the following is a specification.

My invention relates to earth Scrapers, and more particularly to that general class known as field or road Scrapers.

The object of my invention is to provide an earth scraper of durable and simple construction, capable of being used in a field or on a road or in any other place where an earth scraper may be required, without the necessity of disturbing the arrangement or in any manner altering or changing the construction thereof.

A further object of my invention is to provide an earth scraper that will require no levers or lifting bars to handle in operating said scraper, and one in which the earth scraper is operated from a platform by the weight of the operator, giving thoroughly reliable service under all conditions.

A. further object Aof my invention is to provide an earth scraper and means for supporting said earth scraper upon a pair of supporting wheels, the arrangement of parts also include the relative manner in which the operators or drivers-platform is disposed whereby the weight of the driver will be substantially balanced upon, the wheell supports.

A further obiect of myvinvention is to provide an earth scraper which includes a novel cooperative arrangement of a locking latch or detent mechanism for maintaining the scraper in a relatively fixed position while carrying the load to 'the dump, andV also for maintaining the lscraper in a fixed position up clear ofthe ground when said scraperis not in use. p

In its more `subordinate features my invention' embodies certain details of construotion'and novel combination of parts, all of which will be hereinafter more fully described, and particularly pointed out in the appended claim,-reference being had to the accompanying drawings, in which--d Figure 1 is a plan view of `my earth scraper, parts being broken away. Fig. 2 is a sectional view on line A- A of Fig. 1, parts being broken away. Fig. 3 is a detail perspective view showing section on. line D-D of Fig. l, parts being broken away. liig. d is a rear elevation of operators seat 1n position, parts being broken away. Fig. 5 is a detail plan view of the platform showing position of locking and unlocking foot pedals and hinge attachment to scraper, parts being broken away. Fig. 6 is a sectional View on line B-B of `Fig. 5, parts being broken away. Fig. 7 is a sectional view on line C-U of liig. 5, parts being broken away. F ig. 8 is a perspective view of the right-hand cam of the locking de vice. Fig. 9 is a perspective view of one of the braces to which the cutting blade is attached, parts being broken away.

Referring to the accompanying drawings, in which like characters indicate like parts in all of the figures. 1 indicates the platform to which is attached aXie 2, the same being fastened to the under side of platform 1 in any suitable manner. Wheels mounted on said axle 2 are shown at 8. rihese wheels may be made of any suitable material and of any size required. lastened to the front end of platform 1 by hinge attachments d is earth scraper 5. Fastened to the rear end of said platform 1 are brace attachments 6, one on each side thereof, the same being fastened to platform 1 by bolts shown at 7'. rhese brace attachments 6 are bent upward a distance for the purpose of extending the rear end of said platform upward a distance for the purpose of clearing the ground when the scraper 5 on the front end of the platform 1 is raised up clear of the ground by the weight of the operator stepping on plank 8 which is bolted to brace attachments 6 by bolts 9. An iron railing shown at 10 is fastened to platform 1 at 11. The upper portion of said railing 10 extends out overthe front end of platform 1 a distance for the purpose of a hand rest when the operator steps forward of axle 2 for the purpose of entering the scraper 5 into the earth to be scraped. This railing 10 has center rods 12, longitudinal with platform 1 and up a distance from platform 1, one on each side thereof. This center rod 12 is for the purpose of adjusting the operators seat 13 thereon, the same being fastened to bent rods 11i which engage center rods 12 by hooks shown at 15. Connected to bent rods 1d are swivel rods 16 which extend downward to platform 1 and engage with stay strip 17. These strips are fastened to platform 1 in any suitable manner, one on each side thereof, 'and are for the purpose of holding said seat 13 in the proper position by swivel rods 16 when the saine is in use.

The above construction allows the seat to be placed forward or backwardof said axle 2 on either sidev of said platform required, and also the seat may be turned up out of the way and fastened to railing 10 when not in use. Fastened to said scraper 5 is draft pole 18, the saine being held in place by bolts shown at 19. Braces are shown at 20 Vfastened to draft pole 18 by .bolts Q1. The rear end of said braces 20 are bent outward a distance as shown at 22 and inserted through a slot Vcut through Scraper 5 as shown at23, Fig. 3, and fastened to longitudinal bar 211- by bolts shown A Y 'at 25, said longitudinal bar 2i being fastenedto a plurality of upright bars 26 by 'bolts 2 7, said upright bars being fastened to the backV of scraper 5 by bolts 2S. The heads ofsaid bolts 28 are counter-sunk into `V the face of scraper 5 thereby leaving the face of saidv scraper 5 smooth. The lower longitudinal end of upright Vbars26 are bent upwarda distance as shown at29, having a slot30'cut through said bent up portion as shown in Fig. 9. This slot 30 is for the purpose of fastening and adjusting cutting blade31 'to the bottom edge of scraperI 5. This cutting blade 31 is made of steel of the proper widtlnlength and thickness, having 'two' beveled edges for the `purpose of revers- Aing the 'saine' whenrequired and is fastened to upright'bars'26 by countersunk bolts 32.' vOn the back of scraper 5 and near the lower end thereof is'attached adjusting rods 33 which lextend upward and through platforni 1 as shown at 3st one on each side thereof. Said adji'isting rods 33 have a plurality of notches cut in the upper side-therem of as shown at 35 adapted to engage quarter l circle plates 36 which have notches cut in the ends thereof to correspond with the notches 35 cut'in rods V33. These rods 33 are for the purpose of adjusting scraper 5 1n anyiposition required `and are heldin place i by cams 37 fastened tocain shaft 38. This cam shaft 3S extends across the under side l of platform 1 and is held in place by bearings 39 bolted to the under side of platforni 1. Cani 37 on the right hand side of 'platform 1 has two arms as shown ata() and 41. Connected to Varni 40 is rod 4t2, the

Y saine aassino u) Vthrough Jlatforni 1 to which isV fastenedr pedal 43. Connected to '1* throughplaftform 1 to which is fastened pedal 45. Fast-erred lto platform 1 and directly under adjusting rods 33 are sheave Yarin .t1 is rod 44, the saine passing up j thrown V out of vengagement with quarter circle plates 36. Stops are shown at 47 one on each side of platform 1, bolted to the underside thereof by bolts shown at 48,

follows: The'operator standing on platform' 1 sets the scraper in the required position and locks the same by pressing down on pedal 43, which throws rods 33 into engage#V nient with quartercircle plates 36 by' caras 37, and thereby locking scraper 5 in-position. The weight of the'operator stepping forward of axle 2 insertsthescraper 5 into the earth asfthe horses advance. When the load is required to be unlcadedfthe operator steps back of axle '2 a distanc'ewhich raises scraper 5 and unloads thesanie gradually or at once as required. To change Ythe position of-'scraper 5 the operator presses down on pedal 45 which throws cams 37 out of engagement with rods 33, and saidrods drop back to sheave wheels i6 allowing the scraper 5 to be adjusted'into any other pcsition that may be, required. Seat 13 may be adjusted forward or backward on center so Y aoA

rods 12 andplatform las the operator may ed to'adjust said scraperinpositiom said adjusting rods vhaving aplurality of notches cut 1n the upper sides thereof adapted to engage quarter-circleplates, said quartercircl'e plates having notches c ut in the ends thereof adapted to engage said adjusting rods, a pluralityT of cams, a shafttof which said ca'rns are fastened,1one of said cams j having Vtwo ar1ns,frods connected toy said lic cam arms, pedals connectedgto said rods adapted to operate said cains'andfloclr said adjusting rods in placeas'faiid for the pur-V pose described.

InV testimony this 14th day of lllarch,A 1914.-'. Y 'Y Josnrn n. cai/isses. Witnesses: y A l A whereof afhriny signature Y in presence of two `subscribing;witnesses', 

